Floor-drain.



FLOOR-EME'.

maarre.

T0 all whom t may concern;

Be it known that l, Coser B. GoMsTocK, a citizen of the United States, residing at New York, in the county ,of New York and State of New York, have invented certain new and useful improvements in Floor- Drains, of which the following is a specification, reference being had therein tothe accompanying drawing.

This invention relates to improvements in tloor drains of the type adapted 'to be embedded in a door of concrete or similar material and to receive and conduct away surface water. I

The object of the invention is to provide a drain so constructed that it is impossibleA Jfor water to leak around it to points outside of the discharge pipe. Then such leakage occurs, damp places are formed in and4 beneath the ioor, and the accumulation of water may result in disagreeable and un Sanitary conditions. Vv'ith a drain embodying my invention suoli results are entirely -pipe or duct 3. The. duct 3 fits loosely prevented. Y

With the foregoing and other' objects in mind, my invention consists of the improved constructions and arrangements of parts set `forth in the following specification and shown in the draaving. It will be understood, however, that various changes and modifications may be made within the scope of the appended claims without departing from the spirit of my invention.

Ot the drawing-Figure l is a .vertical cross sectional view taken through a floor drain embodying my invention. Fig. 2 is a similar view showing a modified form of door drain embodying my invention.

Referring to Fig. l of the drawing, l represents a bowl, preferably conical in shape, adapted to be set into a suitable opening or depression in a iioor. 2 is a cover for the' bowl l, and this cover is perforated to permit vwater or other liquids to pass through into .the bowl. In the drawin l have shown a flat cover, but it will be understood that this can be made convex or concave when desired. The lower end of the bowl 1 is `provide-d with a downward extending withv in another'larger duct el, at theupper end of L.which there is formed an upward and outward extending conical flange 5 which forms a bowl surrounding.the .bowl 1, but terminating at its upper edge below the level ofthe upper part Vof@thefbowl l and pecication'lof Letters Patent.

Application lei February 25, 1913. Serial No, 750,658.

Patented June i5, lltct.

the cover 2. `Preferably, a ledge or series ot lugs 5 is provided at the lower part of the bowl 5 'for engaging with and supporting the inner bowl l and the duct 8. This is provided at intervals with openings or re- 'there can be wide'variation. i

When the drain is in place in a floor, the outer bowl 5 is embedded in thel 1body of the concrete or other material 7,- ol which the floor is formed. The bowl 5 is placed with its upper edge considerably below the top surface of the completed floor. The dooru forming material extends upward over the top edge of the bowl 5 and downward within it, completely tillingthe upper part of the space between the two bowls 5 and l. The inner bowl 1 is placed with its top edge flush with the licor surface. In the drawing l have shown a floor formed of two different matcrials,'one being a body or foundation of grout .or concrete, and the other being a surface layer, which can be formed of asphalt or waterproof cement. T he upper surface layer is indicated in the drawing by 8. Preferably, the division li-ne between the two parts of the floor is on' a level with the top oi the bowl 5, the surfaceorminglayer alone extending into the space between the two bowls. It will be understood, however, that my improved drain is not limited in its use with a floor formed of two materials. lt will be obvious that it is equally useful with a iioor formed of one material throughout.

It will be observed that the adjacent lower parts of the two bowls converge near the spaces or apertures between the lugs at 5", 5. This converging of the' wallslserves to retard the movement of the floor material into the space andto prevent its entering the' apertures to clog them.

The operation and advantages of my improved construction will. now be readily apparent. The greater 'part of the water or other liquid which reaches the floor flows into the drain through the apertures'inthe cover plate 2. But it hasbeen found practoally impossible to malte an absolutely outside of the'bowl has been lost and has been permitted to collect beneath the door or to lio7 downward along the outside of the discharge pipe. To prevent this, I have provided the supplemental bowl 5 outside of the bowl 1 which serves to collect this liquid and guide it into the discharge pipe. It will be clear from the drawing that the liquid can flow down along the outside of the bowl 1 and through the space between the outer surface of the duct 3 and the inner surface ofthe: duct 4. As an additionalV precaution, I prefer to provide a series of holes 9, 9, in the duct 3 through which the liquid can flow in case the space before,

referred to between the ducts 3 and d'should' become clogged. These apertures when used are preferably placed opposite the re'J cesscs in the shelf 5.

In Fig. 2 I have shown a modified form of floor drain embodying my invention. A detailed description of this will not be necessary as it is similar in most respects to' the construction shown in Fig. 1. It will be noted, however, that there is an inner bowl 1, a cover plate 2, an outer bowl 5a, t

and a discharge tube 4 communicating with a discharge pipe Ga. The construction differs Aprincipally from that shown in Fig. l in that the bowl 1fL is formed integrally with the bowl Fn and the duct fla. In this case apertures at 9 are essential for admitting to the interior of the duct 4 the liquid which finds its wayvdownward along the outside| of the bowl 1a.

It will be observed that by my invention I have provided a floor drain having two concentric bowls each adapted to be completely embedded in the floor; and I have so combined these' bowls with the iioor that each is entirely surrounded from top to bottom by thg floor material. .In the preferred embodiment/of the invention the floor is formed iii'two layers. and the outer bowl is made flush atits top with the top surface of the lower layer and the inner bowl is made flush at its top with the top surface of the upper layer, the upper layer prefer-` 'ably extending downward into the space between the two bowls. As stated above, the top layer of the floor is forred of a material adapted to resist the passage' of water. the result being'that any seepage. of water around the drain outside of the outer bowl 5 is prevented.

In constructing the floor and placing the drain it will be seen that the lower layer 7 of the floor can be put in place first and of the material.

that the path for the liquid be left othermade level with the top of the drain. While this is being done the inner bowl can be removed so as not to interfere with the construction of the lower floor layer. Later, when the workmen are ready to lay the top layer of the floor the inner bowl 1 is set in place on the outer bowl and the top layer 8 of the floor is spread and made level with the top of the inner bowl. As before stated, the two bowls are so constructed that theirl walls converge near the bottoms so as to prevent the plastic material of which the top layer ofthe floor is formed from flowing down to choke the apertures.

Each of the bowls'is provided with an inner surface which is substantially unobstructed and which is sharply inclined downward and inward. This smooth, unobstructed, sharply inclined surface is very important, especially for the outer bowl, as it is necessary for any iuid that may reach the said inner surface to'iiow freely down it to the discharge outlet. This inner surface isV necessarily greatly obstructed by the Hoor material and the liquid at best can flow only through the pores and interstices It is, therefore,l essential wise free so that the liquid can follow freely the saidpores and interstices of the licor material.

What I claim isrl. The combination of two concentric bowls having closely adjacent but separated plane of the inner, and means for receivingand discharging liquid,fr`om the interiors of both bowls. l j i 2. The combination of two concentric bowls having closely adjacent but separated imperforate walls sharply downward and inward inclined throughout, the'outer of which has 'an unobstructed inner surface and extends upward a considerable distance above the bottom plane of the inner and terminates a considerable distance below the top plane of the inner, a discharge duct with which the inner bowl communicates, and connecting means between the inner and the outer bowls having apertures the lower surfaces of which are inclined and in register with the inclined inner surface of the outer b'owl.

3. The combination of twoconecntric bowls, a discharge duct with which the inner bowl communicates, and connecting means between the inner and the outer bowls having apertures, the said bowls having closely adjacent but separated imperforate` walls sharply downward and inward inclined throughout, the outer of which has an unobstructed inner ion lio

Licentie surface and. extends upward a considerable distance above the bottom plane of the inner and terminates a considerable distance below the top plane of the inner, the adjacent parts of the said walls converging near the said apertures.

4. T he combination of two separable concentric bowls having closely adjacent but separated imperforate walls sharply downward and inward inclined throughout, the outer ot which has an unobstructed inner surface and extends upward a considerable distance above the bottom plane ot' the inner andterminates a considerable distance below the top plane of the inner, means' for supporting one of the bowls on the other in definite predetermined relation thereto, and

means for receiving and discharging liquid from the interiors of both bowls.

5. The combination of two separable concentric bowls haring closely adjacent but separated iniperforate walls sharply downward and inward inclined throughout, the

outer of which has an unobstructed inner surface and extends upward a considerable distance above the bottom plane of the inner and terminates a considerable distance below the top plaire of the inner, means coniprising a series ot spaced lugs for supporting,r the inner bowl on the outer, and a duct for receiving and discharging lliquid from the interior of the outer bowl and positioned to also receive and discharge liquid from the interior of the inner bowl.

G. The combination of two separable concentric bowls having closely adjacent but separated impertorate walls sharply downward and inward inclined throughout, the outer ot which has an unobstructed inner surface and extends upward a considerable distance above the bottom plane of the inner and terminates a considerable distance below the top plane ot the inner, means for supporting the inner bowl on the outer, a duct for receiving and .discharging liquid fromthe interior ot' the outer bowl, and a tube connected wit-h the inner bowl and extending downward into the duct.

7. The combination ot two separate concentric bowls' having closely adjacent but separated imperforate walls sharply down ward and inward inclined throughout, the outer oi which has an unobstructed inner surface and extends upward a considerable distance above the bottom plane of the inner and terminates a considerable distance below the top plane of the inner, means comprisinpr a. series of spaced lugs for supportini; the inner bowl on the outer, a duct for receiving` and discl'iarging liquid from the ma if? Y nates at its top a Vconsiderable distance below thetop surface of the licor, and means for receiving and discharging liquid from the interior of both bowls. l

9. The combination of two concentric bowls having closely adjacent but separated impertorate Valls sharply downward and inward inclined throughout, the outer of which has an unobstructed inner siur'ace and extendsupward a considerable distance above the bottom plane of the inner and terminates a considerable distance below the top plane of the inner, and a floor in which the two bowls are completely embedded from top to bottom, the said floor beingl formed of two horizontal layers of diiiering materials, the lower layer being flush at its top surface with the top of the outer bowl and the upper layer of the i'idor beine; flush at its top surface with the top of the inner bowl and extending; downward into the space between the two bowls.

10.'Tlie combination otvtwo' concentric 1 bowls separable at points near their better and havingr closely adjacent but separat iniperforate walls sharply downward alfa inward inclined throughout, the'outer ot which has an unobstructed inner 'surface-and extends upward a considerable distance above the bottom plane of the inner and terniinates; considerable distance below the top plane of the inner, and a floor in which the two bowls are completely embedded from vtop to bottom, the said floor being formed ot two horizontal layers oit ditferii'ig materials, the lower layer beingl flush atlits top surface with the` ctop of the outer bowl and the upper layer ot' the floor being Hush at its top surface with the top of the inner bowl and extending downward into the space be tween the two bowls. a

In testimony whereof l my signature, in presence of two witnesses,

'SORRY B. @Oli/ISTCE'. i Witnesses:

lV. linnn, G. "rimarranno los` 

